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<head>
    <meta charset="UTF-8">
    <title>水平margin是否重叠</title>
    <style>
        span{
            margin-left:15px;
            margin-right: 15px;
            font-size:25px;
            background-color: burlywood;
        }
    </style>
</head>
<body>
<span>你好</span><span>我叫</span><span>孟卓</span>
</body>
</html>